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#ifndef AWS_COMMON_DEVICE_RANDOM_H
#define AWS_COMMON_DEVICE_RANDOM_H
/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/common.h>
AWS_PUSH_SANE_WARNING_LEVEL
struct aws_byte_buf;
AWS_EXTERN_C_BEGIN
/**
* Get an unpredictably random 64bit number, suitable for cryptographic use.
*/
AWS_COMMON_API int aws_device_random_u64(uint64_t *output);
/**
* Get an unpredictably random 32bit number, suitable for cryptographic use.
*/
AWS_COMMON_API int aws_device_random_u32(uint32_t *output);
/**
* Get an unpredictably random 16bit number, suitable for cryptographic use.
*/
AWS_COMMON_API int aws_device_random_u16(uint16_t *output);
/**
* Get an unpredictably random 8bit number, suitable for cryptographic use.
*/
AWS_COMMON_API int aws_device_random_u8(uint8_t *output);
/**
* Fill the rest of a buffer with unpredictably random bytes, suitable for cryptographic use.
*/
AWS_COMMON_API int aws_device_random_buffer(struct aws_byte_buf *output);
/**
* Write N unpredictably random bytes to a buffer, suitable for cryptographic use.
* If there is insufficient space in the buffer, AWS_ERROR_SHORT_BUFFER is raised
* and the buffer will be unchanged.
*/
AWS_COMMON_API int aws_device_random_buffer_append(struct aws_byte_buf *output, size_t n);
AWS_EXTERN_C_END
AWS_POP_SANE_WARNING_LEVEL
#endif /* AWS_COMMON_DEVICE_RANDOM_H */
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